Home / 79,265.13-109,389.18-43,456.51

Finding the Fourth Proportional to 79,265.13, 109,389.18 and 43,456.51

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Solution

The fourth proportional to 79,265.13, 109,389.18 and 43,456.51 is: 59,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,265.13 : 109,389.18 = 43,456.51 : x
  2. Step 2: Convert to fraction form
    79,265.13/109,389.18 = 43,456.51/x
  3. Step 3: Cross multiply
    79,265.13x = 109,389.18 × 43,456.51
  4. Step 4: Simplify right side
    79,265.13x = 4,753,671,994.56
  5. Step 5: Solve for x
    x = 4,753,671,994.56/79,265.13
  6. Step 6: Final answer
    x = 59,971.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.